[PATCH libpciaccess] linux_sysfs: use rom_size = 0x1000 for VGA devices

[Michael]

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Hello,

On Mar 22, 2011, at 11:59 AM, Alex Deucher wrote:

> On Tue, Mar 22, 2011 at 11:49 AM, Forest Bond
> <forest at alittletooquiet.net> wrote:
>> Hi,
>>
>> On Tue, Mar 22, 2011 at 11:15:27AM -0400, Adam Jackson wrote:
>>> On Tue, 2011-03-22 at 10:31 -0400, Forest Bond wrote:
>>>> This patch brings the linux_sysfs backend in parity with other  
>>>> backends,
>>>> which assume that VGA devices have fixed rom_size of 0x1000.  On my
>>>> machines, the previous behavior invariably gives rom_size = 0.
>>>
>>> So cards with ROMs bigger than 64k just get silently truncated?  No
>>> thanks.
>>
>> BTW, if this is wrong then I believe that pci_device_freebsd_probe  
>> and
>> pci_device_x86_probe are currently broken.  Maybe you can correct me.
>
> There are definitely roms > 64k.  Most newer radeons fall into this  
> category.

Also, Apple and Sun (open)firmware on graphics cards tends to be  
bigger than 64kB. Most of the time the only reason why you couldn't  
just take a PC radeon and flash it with Apple firmware was the ROM size.
Not that Xorg actually knows what to do with these ROMs but still,  
assuming it's 64kB is just plain wrong.

have fun
Michael

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